Originally Posted by trilkb
ah man, bassthathz is going to have to get rid of like 30 subwoofers and keep his best 2.
That will not be happening.
That said: In an "ideal universe" all the subwoofers would be the same, and all of them would be 115db/w/m instead of 88db/w/m and no cone-mass and infinite power-handling and all that pretend-think stuff. Unfortunately the universe isn't ideal. (It's God's way of saying he loves you... [he really does care, see!?
Different drivers and box-types and brands (or even models within the same brand) can-and-do have wildly different parameters and capabilities; and so their phase and group-delay and linearity and sensitivity and THD and thermal-handling and tuning's will be all over the map.
As you scale up the system, say 32 subwoofers: The applied-power needed to hit a given SPL continues to drop.
32 18's doing 1mm is the same SPL as 1 18 doing 32mm's. Yet 1mm is like 32watts, vs 32mm's being 3200watts or whatever...
With this reduced excursion and power, also lowers the THD and thermal-compression to nill. It also ensures that all the drivers are well-within their optimal operating parameters, say flat from: whatever hz to whatever hz.
(and so BassThatHz isn't as crazy as you think he is? Who would have thunk it!!!
Now if you only have 2 and they are both different, and your demands for SPL are high, it's gonna be FAR more noticeable. Like say a 98db/w/m woofer with a decently strong magnet vs a 86db/w/m woofer with a weaker magnet or high inductance. One set is gonna hit their limits well before the other:
Will it be a problem?